New Phytologist最新文献

Vanessa E. Rubio. Vanessa E. Rubio.

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-10-06 DOI: 10.1111/nph.20176

引用次数: 0

Sex allocation: the effect of population size and structure, fertilisation success, and propagule dimorphism.

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-11-28 DOI: 10.1111/nph.20239

Jussi Lehtonen

引用次数: 0

How does plant chemodiversity evolve? Testing five hypotheses in one population genetic model. 植物化学多样性是如何进化的？在一个种群遗传模型中测试五个假设

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-09-05 DOI: 10.1111/nph.20096

Meike J Wittmann, Andrea Bräutigam

{"title":"How does plant chemodiversity evolve? Testing five hypotheses in one population genetic model.","authors":"Meike J Wittmann, Andrea Bräutigam","doi":"10.1111/nph.20096","DOIUrl":"10.1111/nph.20096","url":null,"abstract":"Plant chemodiversity, the diversity of plant-specialized metabolites, is an important dimension of biodiversity. However, there are so far few mathematical models to test verbal hypotheses on how chemodiversity evolved. Here, we develop such a model to test predictions of five hypotheses: the 'fluctuating selection hypothesis', the 'dominance reversal hypothesis', the interaction diversity hypothesis, the synergy hypothesis, and the screening hypothesis. We build a population genetic model of a plant population attacked by herbivore species whose occurrence fluctuates over time. We study the model using mathematical analysis and individual-based simulations. As predicted by the 'dominance reversal hypothesis', chemodiversity can be maintained if alleles conferring a defense metabolite are dominant with respect to the benefits, but recessive with respect to costs. However, even smaller changes in dominance can maintain polymorphism. Moreover, our results underpin and elaborate predictions of the synergy and interaction diversity hypotheses, and, to the extent that our model can address it, the screening hypotheses. By contrast, we found only partial support for the 'fluctuating selection hypothesis'. In summary, we have developed a flexible model and tested various verbal models for the evolution of chemodiversity. Next, more mechanistic models are needed that explicitly consider the organization of metabolic pathways.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1302-1314"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11711931/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142141555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New mechanism of strigolactone-regulated cold tolerance in tomato. 芪醇内酯调节番茄耐寒性的新机制

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-09-30 DOI: 10.1111/nph.20165

Qianqian Li, Bing Wang, Hong Yu

引用次数: 0

MicroRNA399s and strigolactones mediate systemic phosphate signaling between dodder-connected host plants and control association of host plants with rhizosphere microbes. MicroRNA399s 和绞股蓝内酯介导菟丝子寄主植物之间的系统磷酸盐信号传递，并控制寄主植物与根瘤微生物的结合。

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-11-18 DOI: 10.1111/nph.20266

Man Zhao, Xijie Zheng, Zhongxiang Su, Guojing Shen, Yuxing Xu, Zerui Feng, Wenxing Li, Shuhan Zhang, Guoyan Cao, Jingxiong Zhang, Jianqiang Wu

{"title":"MicroRNA399s and strigolactones mediate systemic phosphate signaling between dodder-connected host plants and control association of host plants with rhizosphere microbes.","authors":"Man Zhao, Xijie Zheng, Zhongxiang Su, Guojing Shen, Yuxing Xu, Zerui Feng, Wenxing Li, Shuhan Zhang, Guoyan Cao, Jingxiong Zhang, Jianqiang Wu","doi":"10.1111/nph.20266","DOIUrl":"10.1111/nph.20266","url":null,"abstract":"A dodder (Cuscuta) often simultaneously parasitizes two or more adjacent hosts. Phosphate (Pi) deficiency is a common stress for plants, and plants often interact with soil microbes, including arbuscular mycorrhizal fungi (AMF), to cope with Pi stress. Little is known about whether dodder transmits Pi deficiency-induced systemic signals between different hosts. In this study, dodder-connected plant clusters, each composed of two tobacco (Nicotiana tabacum) plants connected by a dodder, were established, and in each cluster, one of the two tobacco plants was treated with Pi starvation. AMF colonization efficiency, rhizosphere bacterial community, and transcriptome were analyzed in the other dodder-connected Pi-replete tobacco plant to study the functions of interplant Pi signals. We found that dodder transfers Pi starvation-induced systemic signals between host plants, resulting in enhanced AMF colonization, changes of rhizosphere bacterial communities, and alteration of transcriptomes in the roots of Pi-replete plants. Importantly, genetic analyses indicated that microRNA399s (miR399s) and strigolactones suppress the systemic Pi signals and negatively affect AMF colonization in the Pi-replete plants. These findings provide new insight into the ecological role of dodder in mediating host-host and host-microbe interactions and highlight the importance of strigolactone and miR399 pathways in systemic Pi signaling.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1263-1276"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functional characterization reveals the importance of Arabidopsis ECA4 and EPSIN3 in clathrin mediated endocytosis and wall structure in apical growing cells. 功能表征揭示了拟南芥 ECA4 和 EPSIN3 在凝集素介导的内吞和顶端生长细胞壁结构中的重要性。

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-11-18 DOI: 10.1111/nph.20282

Rita Teresa Teixeira, Dario Marchese, Patrick J Duckney, Fernando Vaz Dias, Ana P Carapeto, Mariana Louro, Marta Sousa Silva, Carlos Cordeiro, Mário S Rodrigues, Rui Malhó

{"title":"Functional characterization reveals the importance of Arabidopsis ECA4 and EPSIN3 in clathrin mediated endocytosis and wall structure in apical growing cells.","authors":"Rita Teresa Teixeira, Dario Marchese, Patrick J Duckney, Fernando Vaz Dias, Ana P Carapeto, Mariana Louro, Marta Sousa Silva, Carlos Cordeiro, Mário S Rodrigues, Rui Malhó","doi":"10.1111/nph.20282","DOIUrl":"10.1111/nph.20282","url":null,"abstract":"Localized clathrin mediated endocytosis is vital for secretion and wall deposition in apical growing plant cells. Adaptor and signalling proteins, along with phosphoinositides, are known to play a regulatory, yet poorly defined role in this process. Here we investigated the function of Arabidopsis ECA4 and EPSIN3, putative mediators of the process, in pollen tubes and root hairs. Homozygous eca4 and epsin3 plants exhibited altered pollen tube morphology (in vitro) and self-pollination led to fewer seeds and shorter siliques. These effects were augmented in eca4/epsin3 double mutant and quantitative polymerase chain reaction data revealed changes in phosphoinositide metabolism and flowering genes suggestive of a synergistic action. No visible changes were observed in root morphology, but atomic force microscopy in mutant root hairs showed altered structural stiffness. Imaging and FRET-FLIM analysis of ECA4 and EPSIN3 X-FP constructs revealed that both proteins interact at the plasma membrane but exhibit slightly different intracellular localization. FT-ICR-MS metabolomic analysis of mutant cells showed changes in lipids, amino acids and carbohydrate composition consistent with a role in secretion and growth. Characterization of double mutants of eca4 and epsin3 with phospholipase C genes (plc5, plc7) indicates that phosphoinositides (e.g. PtdIns(4,5)P2) are fundamental for a combined and complementary role of ECA4-EPSIN3 in cell secretion.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1056-1071"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Natural variation in GhROPGEF5 contributes to longer and stronger cotton fibers. GhROPGEF5 的自然变异可使棉纤维更长、更结实。

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-11-22 DOI: 10.1111/nph.20286

Wenwen Wang, Dexin Liu, Tingfu Zhang, Kai Guo, Xueying Liu, Dajun Liu, Lei Chen, Jinming Yang, Zhonghua Teng, Ying Zou, Junrui Ma, Yi Wang, Xinrui Yang, Xin Guo, Xiaoting Sun, Jian Zhang, Yuehua Xiao, Andrew H Paterson, Zhengsheng Zhang

{"title":"Natural variation in GhROPGEF5 contributes to longer and stronger cotton fibers.","authors":"Wenwen Wang, Dexin Liu, Tingfu Zhang, Kai Guo, Xueying Liu, Dajun Liu, Lei Chen, Jinming Yang, Zhonghua Teng, Ying Zou, Junrui Ma, Yi Wang, Xinrui Yang, Xin Guo, Xiaoting Sun, Jian Zhang, Yuehua Xiao, Andrew H Paterson, Zhengsheng Zhang","doi":"10.1111/nph.20286","DOIUrl":"10.1111/nph.20286","url":null,"abstract":"Length and strength are key parameters impacting the quality of textiles that can be produced from cotton fibers, and therefore are important considerations in cotton breeding. Through map-based cloning and function analysis, we demonstrated that GhROPGEF5, encoding a ROP guanine nucleotide exchange factor, was the gene controlling fiber length and strength at qFSA10.1. Evolutionary analysis revealed that a base deletion in the third exon of GhROPGEF5 resulting in superior fiber length and strength was a rare mutation occurring in a tiny percentage of Upland cottons, with reduced fiber yield hindering its spread. GhROPGEF5 interacted with and activated GhROP10. Knockout or mutation of GhROPGEF5 resulted a loss of the ability to activate GhROP10. Knockout of GhROPGEF5 or GhROP10 affected the expression of many downstream genes associated with fiber elongation and secondary wall deposition, prolonged fiber elongation and delayed secondary wall deposition, producing denser fiber helices and increasing fiber length and strength. These results revealed new molecular aspects of fiber development and revealed a rare favorable allele for improving fiber quality in cotton breeding.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1090-1105"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142689313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strigolactones positively regulate HY5-dependent autophagy and the degradation of ubiquitinated proteins in response to cold stress in tomato. 在番茄应对冷胁迫的过程中，三苯甲内酯能正向调节依赖于 HY5 的自噬和泛素化蛋白质的降解。

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-08-19 DOI: 10.1111/nph.20058

Cheng Chi, Xinlin Chen, Changan Zhu, Jiajian Cao, Hui Li, Ying Fu, Guochen Qin, Jun Zhao, Jingquan Yu, Jie Zhou

{"title":"Strigolactones positively regulate HY5-dependent autophagy and the degradation of ubiquitinated proteins in response to cold stress in tomato.","authors":"Cheng Chi, Xinlin Chen, Changan Zhu, Jiajian Cao, Hui Li, Ying Fu, Guochen Qin, Jun Zhao, Jingquan Yu, Jie Zhou","doi":"10.1111/nph.20058","DOIUrl":"10.1111/nph.20058","url":null,"abstract":"Autophagy, involved in protein degradation and amino acid recycling, plays a key role in plant development and stress responses. However, the relationship between autophagy and phytohormones remains unclear. We used diverse methods, including CRISPR/Cas9, ultra-performance liquid chromatography coupled with tandem mass spectrometry, chromatin immunoprecipitation, electrophoretic mobility shift assays, and dual-luciferase assays to explore the molecular mechanism of strigolactones in regulating autophagy and the degradation of ubiquitinated proteins under cold stress in tomato (Solanum lycopersicum). We show that cold stress induced the accumulation of ubiquitinated proteins. Mutants deficient in strigolactone biosynthesis were more sensitive to cold stress with increased accumulation of ubiquitinated proteins. Conversely, treatment with the synthetic strigolactone analog GR245DS enhanced cold tolerance in tomato, with elevated levels of accumulation of autophagosomes and transcripts of autophagy-related genes (ATGs), and reduced accumulation of ubiquitinated proteins. Meanwhile, cold stress induced the accumulation of ELONGATED HYPOCOTYL 5 (HY5), which was triggered by strigolactones. HY5 further trans-activated ATG18a transcription, resulting in autophagy formation. Mutation of ATG18a compromised strigolactone-induced cold tolerance, leading to decreased formation of autophagosomes and increased accumulation of ubiquitinated proteins. These findings reveal that strigolactones positively regulate autophagy in an HY5-dependent manner and facilitate the degradation of ubiquitinated proteins under cold conditions in tomato.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1106-1123"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142001111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Xizang meadow degradation alters resource exchange ratio, network complexity, and biomass allocation tradeoff of arbuscular mycorrhizal symbiosis.

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-11-29 DOI: 10.1111/nph.20304

Qiang Dong, Shijie Ren, Claire Elizabeth Willing, Catharine Allyssa Adams, Yaoming Li, Baoming Ji, Cheng Gao

{"title":"Xizang meadow degradation alters resource exchange ratio, network complexity, and biomass allocation tradeoff of arbuscular mycorrhizal symbiosis.","authors":"Qiang Dong, Shijie Ren, Claire Elizabeth Willing, Catharine Allyssa Adams, Yaoming Li, Baoming Ji, Cheng Gao","doi":"10.1111/nph.20304","DOIUrl":"10.1111/nph.20304","url":null,"abstract":"The response of arbuscular mycorrhizal (AM) symbiosis to environmental fluctuations involves resource exchange between host plants and fungal partners, associations between different AM fungal taxa, and biomass allocation between AM fungal spore and hyphal structures; yet a systematic understanding of these responses to meadow degradation remains relatively unknown, particularly in Xizang alpine meadow. Here, we approached this knowledge gap by labeling dual isotopes of air 13CO2 and soil 15NH4Cl, computing ecological networks of AM fungal communities, and quantifying AM fungal biomass allocation among spores, intra- and extraradical hyphae. We found that the exchange ratio of photosynthate and nitrogen between plants and AM fungi increased with the increasing severity of meadow degradation, indicating greater dependence of host plants on this symbiosis for resource acquisition. Additionally, using 18S rRNA gene metabarcoding, we found that AM fungal co-occurrence networks were more complex in more degraded meadows, supporting the stress gradient hypothesis. Meadow degradation also increased AM fungal biomass allocation toward traits associated with intra- and extraradical hyphae at the expense of spores. Our findings suggest that an integrated consideration of resource exchange, ecological networks, and biomass allocation may be important for the restoration of degraded ecosystems.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1288-1301"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142752092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A defensive pathway from NAC and TCP transcription factors activates a BAHD acyltransferase for (Z)-3-hexenyl acetate biosynthesis to resist herbivore in tea plant (Camellia sinensis). 来自 NAC 和 TCP 转录因子的防御途径可激活 BAHD 乙酰转移酶，促进 (Z)-3- 己烯基乙酸酯的生物合成，从而抵御茶树（Camellia sinensis）中的草食动物。

IF 9.4 1区生物学

New Phytologist Pub Date : 2025-02-01 Epub Date: 2024-11-17 DOI: 10.1111/nph.20283

Honglian Gu, Jiaxing Li, Dahe Qiao, Mei Li, Yingjie Yao, Hui Xie, Ke-Lin Huang, Shengrui Liu, De-Yu Xie, Chaoling Wei, Junyan Zhu

{"title":"A defensive pathway from NAC and TCP transcription factors activates a BAHD acyltransferase for (Z)-3-hexenyl acetate biosynthesis to resist herbivore in tea plant (Camellia sinensis).","authors":"Honglian Gu, Jiaxing Li, Dahe Qiao, Mei Li, Yingjie Yao, Hui Xie, Ke-Lin Huang, Shengrui Liu, De-Yu Xie, Chaoling Wei, Junyan Zhu","doi":"10.1111/nph.20283","DOIUrl":"10.1111/nph.20283","url":null,"abstract":"Numerous herbivore-induced plant volatiles (HIPVs) play important roles in plant defense. In tea plants (Camellia sinensis), (Z)-3-hexenyl acetate (3-HAC) has been characterized as associated with resistance to herbivores. To date, how tea plants biosynthesize and regulate 3-HAC to resist herbivores remain unclear. Based on transcriptomes assembled from Ectropis obliqua-fed leaves, a cDNA encoding BAHD acyltransferase, namely CsCHAT1, was highly induced in leaves fed with E. obliqua. Enzymatic assays showed that CsCHAT1 converted (Z)-3-hexenol into 3-HAC. Further suppression of CsCHAT1 expression reduced the accumulation of 3-HAC and lowered the resistance of tea plants to E. obliqua, while 3-HAC replenishment rescued the reduced resistance of CsCHAT1-silenced tea plants against E. obliqua. Two transcription factors (TFs), CsNAC30 and CsTCP11, were co-expressed with CsCHAT1. An integrative approach of biochemistry, DNA-protein interaction, gene silencing, and metabolic profiling revealed that the two TFs positively regulated the expression of CsCHAT1. The suppression of either one decreased the production of 3-HAC and eliminated the resistance of tea plants to E. obliqua. Notably, the suppression of either one considerably impaired JA-induced 3-HAC biosynthesis in tea plant. The proposed pathway can be targeted for innovative agro-biotechnologies protecting tea plants from damage by E. obliqua.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1232-1248"},"PeriodicalIF":9.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142644653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0